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{$ifdef NDS_INTERFACE}
const
// Card bus
REG_CARD_DATA_RD : pcuint32 = pointer($04100010);
REG_AUXSPICNT : pcuint16 = pointer($040001A0);
REG_AUXSPICNTH : pcuint8 = pointer($040001A1);
REG_AUXSPIDATA : pcuint8 = pointer($040001A2);
REG_ROMCTRL : pcuint32 = pointer($040001A4);
REG_CARD_COMMAND : pcuint8 = pointer($040001A8);
CARD_1B0 : pcuint32 = pointer($040001B0);
CARD_1B4 : pcuint32 = pointer($040001B4);
CARD_1B8 : pcuint16 = pointer($040001B8);
CARD_1BA : pcuint16 = pointer($040001BA);
CARD_CR1_ENABLE = $80; // in byte 1, i.e. 0x8000
CARD_CR1_IRQ = $40; // in byte 1, i.e. 0x4000
// SPI EEPROM COMMANDS
SPI_EEPROM_WRSR = $01;
SPI_EEPROM_PP = $02; // Page Program
SPI_EEPROM_READ = $03;
SPI_EEPROM_WRDI = $04; // Write disable
SPI_EEPROM_RDSR = $05; // Read status register
SPI_EEPROM_WREN = $06; // Write enable
SPI_EEPROM_PW = $0a; // Page Write
SPI_EEPROM_FAST = $0b; // Fast Read
SPI_EEPROM_RDID = $9f;
SPI_EEPROM_RDP = $ab; // Release from deep power down
SPI_EEPROM_DPD = $b9; // Deep power down
// REG_ROMCTRL:
CARD_ACTIVATE = (1 shl 31); // when writing, get the ball rolling
CARD_WR = (1 shl 30);
CARD_nRESET = (1 shl 29); // value on the /reset pin (1 = high out, not a reset state, 0 = low out = in reset)
CARD_SEC_LARGE = (1 shl 28); // when writing
CARD_CLK_SLOW = (1 shl 27); // when writing
CARD_SEC_CMD = (1 shl 22); // The command transfer will be hardware encrypted (KEY2)
CARD_SEC_SEED = (1 shl 15); // Apply encryption (KEY2) seed to hardware registers
CARD_SEC_EN = (1 shl 14); // Security enable
CARD_SEC_DAT = (1 shl 13); // The data transfer will be hardware encrypted (KEY2)
function CARD_BLK_SIZE(n: cint): cint; inline;
function CARD_DELAY2(n: cint): cint; inline;
function CARD_DELAY1(n: cint): cint; inline;
const
// 3 bits in b10..b8 indicate something
// read bits
CARD_BUSY = (1 shl 31); // when reading, still expecting incomming data?
CARD_DATA_READY = (1 shl 23); // when reading, CARD_DATA_RD or CARD_DATA has another word of data and is good to go
// Card commands
CARD_CMD_DUMMY = $9F;
CARD_CMD_HEADER_READ = $00;
CARD_CMD_HEADER_CHIPID = $90;
CARD_CMD_ACTIVATE_BF = $3C; // Go into blowfish (KEY1) encryption mode
CARD_CMD_ACTIVATE_SEC = $40; // Go into hardware (KEY2) encryption mode
CARD_CMD_SECURE_CHIPID = $10;
CARD_CMD_SECURE_READ = $20;
CARD_CMD_DISABLE_SEC = $60; // Leave hardware (KEY2) encryption mode
CARD_CMD_DATA_MODE = $A0;
CARD_CMD_DATA_READ = $B7;
CARD_CMD_DATA_CHIPID = $B8;
// REG_AUXSPICNT
CARD_ENABLE = (1 shl 15);
CARD_SPI_ENABLE = (1 shl 13);
CARD_SPI_BUSY = (1 shl 7);
CARD_SPI_HOLD = (1 shl 6);
CARD_SPICNTH_ENABLE = (1 shl 7); // in byte 1, i.e. 0x8000
CARD_SPICNTH_IRQ = (1 shl 6); // in byte 1, i.e. 0x4000
procedure enableSlot1(); cdecl; external;
procedure disableSlot1(); cdecl; external;
procedure cardWriteCommand(const command: pcuint8); cdecl; external;
procedure cardPolledTransfer(flags: cuint32; destination: pcuint32; length: cuint32; const command: pcuint8); cdecl; external;
procedure cardStartTransfer(const command: pcuint8; destination: pcuint32; channel: cint; flags: cuint32); cdecl; external;
function cardWriteAndRead(const command: pcuint8; flags: cuint32): cuint32; cdecl; external;
procedure cardParamCommand(command: cuint8; parameter, flags: cuint32; destination: pcuint32; length: cuint32); cdecl; external;
procedure cardReadHeader(header: pcuint8); cdecl; external;
function cardReadID(flags: cuint32): cuint32; cdecl; external;
procedure cardReset(); cdecl; external;
procedure eepromWaitBusy(); inline;
procedure cardReadEeprom(address: cuint32; data: pcuint8; length: cuint32; addrtype: cuint32); cdecl; external;
procedure cardWriteEeprom(address: cuint32; data: pcuint8; length: cuint32; addrtype: cuint32); cdecl; external;
function cardEepromReadID(): cuint32; cdecl; external;
function cardEepromCommand(command: cuint8): cuint8; cdecl; external;
function cardEepromGetType({void}): cint; cdecl; external;
function cardEepromGetSize(): cuint32; cdecl; external;
procedure cardEepromChipErase({void}); cdecl; external;
procedure cardEepromSectorErase(address: cuint32); cdecl; external;
{$endif NDS_INTERFACE}
{$ifdef NDS_IMPLEMENTATION}
function CARD_BLK_SIZE(n: cint): cint; inline;
begin
result := (n and $7) shl 24;
end;
function CARD_DELAY2(n: cint): cint; inline;
begin
result := (n and $3F) shl 16;
end;
function CARD_DELAY1(n: cint): cint; inline;
begin
result := (n and $1FFF);
end;
procedure eepromWaitBusy(); inline;
begin
while (REG_AUXSPICNT^ and CARD_SPI_BUSY) <> 0 do;
end;
{$endif NDS_IMPLEMENTATION}
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